One of Japan's larger retailers, Jusco, attracts tens thousands of shoppers at every one of their 200+ malls every day. And every mall design seems to be an iteration of the previous one, meaning that the newer malls have a more human-friendly design aimed at helping people spend far more than initially planned. While the mall itself sees a lot of incremental updates, there is one crucial element that seems to be little more than an afterthought; vehicular access.
So here's a quick tip for anybody going to an Aeon Jusco mall, any one of them, for the first time: make sure you come in with the mall on your left. If you come in with the mall on the right, you'll be greeted with a bunch of "Do No Enter" and "No U-Turns Allowed" signs. Even the useless guys with the orange batons who pretend like they're directing traffic will block you from entering the mall if you try to come in on the wrong side.
When you do finally make it into the parking lot, you need to remember that traffic now moves to the right. The only way you'll ever find a parking spot is to keep turning right and traversing the endless one-way routes that almost every driver tends to traverse the wrong way. By doing this it should be possible to find a decent parking spot within five minutes.
So, that's counter-clockwise to enter the parking lot, and clockwise once you're in the parking lot. To get out, simply follow the red arrows through an unnecessarily convoluted tour of the parking lot before you finally see signs of a real road.